Double ended design which gives 16 sizes. This compact tool saves time, space and money and is ideal for technicians, service engineers and for the home auto enthusiast. SIZES : Star x T9/T10/T15/T20/T25/T27/T30/T40 Hex - Ball-end 2/2.5/3/3.5/4/4.5/5/6 mm Manufactured from S2 steel for strength and complete with plastic clip holder